Home / 548,504.20-822,756.30-478,520.20

Finding the Fourth Proportional to 548,504.20, 822,756.30 and 478,520.20

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Solution

The fourth proportional to 548,504.20, 822,756.30 and 478,520.20 is: 717,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,504.20 : 822,756.30 = 478,520.20 : x
  2. Step 2: Convert to fraction form
    548,504.20/822,756.30 = 478,520.20/x
  3. Step 3: Cross multiply
    548,504.20x = 822,756.30 × 478,520.20
  4. Step 4: Simplify right side
    548,504.20x = 393,705,509,227.26
  5. Step 5: Solve for x
    x = 393,705,509,227.26/548,504.20
  6. Step 6: Final answer
    x = 717,780.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.